Cash register



y w. H. RQBERTSON CASH REGISTER Filed Nov. 16, 1958 8 Sheets-Sheet 1 4648 HGE 3nnentor William H. Robertson Hi: (Ittorneg y 1941 w. H.ROBEfiTSON 2,281,803

CASH REGI STER F iled Nov. 16, 1938 a Sheets-Sheet 2 William H.Robertson y y 1941 I W. H; ROBERTSON 2,281,803

CASH REGI STER Filed Nov. 16, 19:58 a Sheets- Sheet s Inventor WilliamH. Rubertson H3 Ottorneg y 1942- w. H. ROBERTSON 2,281,803

CASH REGISTER Filed Nov. 16, 1938 8 Sheets-Sheet 4 3nventor William H.Robertson Hi; (ittorneg May 5, 1942. w. H. ROBERTSON CASH REGISTER FiledNov. 16, 1938 8 Sheets-Sheet 5 it 7 4 M Zhwentor William H. Robertson Hiattomeg Ill/Ill I,

H. ROBERTSON 2,281,803

CASH REGISTER Filed Nov. 16, 1938 8 Sheets-Sheet 6 3m entor William H.Robertson l Gttorneg y 1942- w. H. ROBERTSON 2,281,8Q3

CASH REGISTER Filed Nov. 16, 19158 8 SheetsfSheet 7 FIG. 20

3nnentor Wimam H. Robertson H: (Ittorneg May 5, 1942.,

w. H. ROBERTSON CASH REGISTER Filed Nov. 16, 1938 a Sheets-Sheet 8 FIG.22

Patented May 5, 1942 UNl'lED STATES PATENT OFFICE CASH REGISTERApplication November 16, 1938, Serial No. 240,819

Claims.

This invention relates to the type of cash register commonly referred toas an accounting machine, and is particularly directed to the totalizermechanisms of machines of the type disclosed in United States PatentsNos. 1,242,170 and 1,394,256, issued, respectively, October 9, 1917, andOctober 18, 1921, to F. L. Fuller, and Patents No. 1,619,796 and No.1,747,397, issued, respectively, March 1, 1927, and February 18, 1930,to B. M. Shipley.

In recent years, machines of the class referred to above have come intoprominent use by large merchandising establishments for the analysis ofthe sales of a large variety of commodities marketed by saidmerchandising establishment. For example, a large electrical companymanufacturing and marketing electrical appliances may wish to keep acomplete sales analysis of each of the leading electrical appliancesmarketed thereby. Likewise, a department store or large grocery storemay Wish to keep a perpetual inventory of the value of the goods incertain departments, or a perpetual inventory of a number of itemsmarketed thereby.

Obviously, an accounting machine having devices for retaining a largenumber of separate totals is best suited to the types of work referredto above. Therefore, broadly, it is one object of this invention toprovide a machine of the class referred to above with a large number ofseparate total storage devices arranged so as to occupy minimum spaceand so as not to interfere in any way with the established functions ofthe machine.

Another object is the provision of a large number of individual storagedevices and a single computing device for computing amounts to be storedin all the storage devices, to obtain a plurality of individual totals.

Another object of the present invention is to supply a plurality ofstorage devices constructed so as to occupy minimum space and adapted tobe actuated by a single computing device or balance totalizer whichforms an operating connection between the machine proper and saidstorage devices for the purpose of carrying on adding and subtractingoperations, the results of which are stored in the selected storage, andfor the purpose of recording the totals retained in any of the storagedevices.

A further object is to provide means whereby a single balance totalizeris adapted to combine positive or negative amounts set up on thekeyboard With amounts retained in any of a plurality of storage devicesto obtain a plurality of individual totals.

Another object of the present invention is to provide means whereby asingle balance totalizer is adapted to receive an amount stored in anyone of a plurality of storage devices, combine that amount with apositive or negative amount set up on the keyboard of the machine, andenter the total or combined amount in the selected storage device.

Another object is the provision of nove1 means for selecting any one ofa series of lines, each supporting a plurality of sets of storagedevices, for selecting any one of the storage devices on the selectedline for actuation by a computing device and for shifting the line tooperatively connect the selected storage device with the computingdevice.

With these and incidental objects in View, the invention includescertain novel features of construction and combinations of parts, theessential elements of which are set forth in appended claims and apreferred form or embodiment of which is hereinafter described withreference to the drawings which accompany and form a part of thisspecification.

In the drawings:

Fig. 1 is a cross-sectional view of the machine proper taken just to theright of one of the amount banks, and shows, in particular, said amountbank, its associated differential mechanism, and the denominationalorder of the balance totalizer and storage devices actuated by thisparticular diiierential mechanism.

Fig. 2 is a cross-sectional view, as observed from the right of themachine and taken just to the right of one of the transaction banks,illustrating said transaction bank and the diiierential mechanismassociated therewith.

Fig. 3 is a fragmentary front elevation of the machine, showing inparticular, one denominational order of the storage devices and thecontrolling mechanisms associated therewith.

Fig. 4 is a detail view, as observed from a point directly above themachine, showing the mechanism for shifting the balance totalizer fromadding position to subtracting position and Vice versa, and also showinga portion of the engaging mechanism for the balance totalizer.

Fig. 5 is a detail view of a part of the mechanism for controlling theengagingand disengaging of the balance totalizer.

Fig. 6 is a detail View of a part of the transfer mechanism for thebalance totalizer, and the means whereby the balance totalizer controlsthe positioning of the machine difierential in total recordingoperations.

Fig. 7 is a detail view of the cam for shifting the actuators for theStorage devices laterally to select the different sets of said storagedevices.

Fig. 8 is a detail view of the mechanism for operating the cam shown inFig. '7.

Fig. 9 is a sectional view, as observed from the right of the machine,of the cam shown in Fig. 7.

Fig. 10 is a detail view of the selecting and operating mechanism forthe mechanism which controls the engaging of the selected storage devicewith the auxiliary actuators.

Fig. 11 is a front view, partially sectioned, of the storage deviceselecting'and engaging mechanism shown principally in Figs. 10, 12, and13.

Fig. 12 is a detail View of a part of the mechanism for selecting andengaging the various storage devices with their actuators.

Fig. 13 is a detail view of one of the storage device engaging arms anda part of the mechanism associated therewith,

Fig. 14 is a fragmentary sectional view, as observed from the right ofthe machine, illustrating the different lines of storage devices and theactuating mechanism associated therewith.

Fig. 15 is a detail view of the aliner for the transaction differentialmechanism and the op erating mechanism for this aliner.

Fig. 16 is a detail view of the mechanism for alining the actuators forthe storage devices, in their set positions.

Fig. 17 is a detail view of the cam and associated mechanism for drivingthe actuators for the storage devices.

Fig. 18 is a detail view of the stop pawl and stop disc associatedtherewith, for terminating retrograde movement of one of the totalizerwheels when it arrives at zero position.

Fig. 19 is a right end View of the storage device mechanism and thebalance totalizer, showing mainly the means for controlling the engagingand disengaging movement of the balance totalizer.

Fig. 20 is a detail view of one denominational order of the balancetotalizer andits connection to the corresponding order of the storagedevices.

Fig. 21 is a detail view of the gearing for driving the balancetotalizer wheels in a reverse di- Fig. 23 is a diagrammatic view of aportion of the keyboard of the machine embodying the instant invention.

General description The machine embodying the instant invention has aplurality of denominational rows of amount keys, which control thepositioning of their corresponding main differential actuators, whichactuators in turn control the positioning of corresponding type wheelsand, if desired, corresponding indicators. The main actuators are alsoarranged to actuate two main sets of totalizers commonly known as anupper and a front totalizer line, each having ten sets of totalizerwheels thereon. While ten totalizers are provided on each of the upperand front totalizer lines, in the instant embodiment only fourtotalizers on the upper line and seven on the front line are utilized. a

A row of transaction keys for each of the main sets of totalizerscontrols the selection of the different sets of totalizer wheels forengagement with the amount differentials, and in adding operationscontrols means which causes said totalizer wheels to be engaged withsaid differentials.

The well known total control lever is provided for controlling theadding and total printing functions of the machine. In total printingoperations, often referred to as read and reset operations, the totalcontrol lever also controls means to cause the selective engagement ofone or the other of the two main sets of totalizers with the amountactuators, in which case the transaction keys for the selected main setof totalizers merely select the different totalizers of the set and havenothing to do with the engaging of said totalizers with the amountactuators.

In adding operations the main actuators, during their initial movements,are positioned under control of the depressed amount keys, and at. thesame time the selected totalizer line or lines are shifted laterally toaline the selected set of wheels thereon with said actuators.

After the actuators have been positioned in proportion to the depressedamount keys, the wheels of the selected totalizer are engaged therewith,and return movement of said actuators rotates said wheels to add thereinthe amount set up on the keyboard.

Adding and subtracting operations are effected by one cycle of movementof the operating mechanism, whereas total printing operations requiretwo cycles of movement of said operating mechanism. The cyclecontrolling mechanism is not shown in the present application. However,this mechanism is well known in the art and is fully disclosed in thepatents referred to at the beginning of this specification.

The first cycle of a total printing operation is utilized to shift theselected totalizer line laterally to bring the selected set of wheelsthereon into register with the main actuators, and during this firstcycle the zero stop pawls break the latches for said main differentialactuators in zero positions. Consequently, said actuators do not moveaway from Zero. In the first cycle, immediately after the selected setof totalizer wheels has been moved into register with the actuators,said wheels are moved into engagement with saidactuators. During thesecond cycle of a total printing operation, initial movement of the mainactuators reversely. rotates the wheels of the selected totalizer untila long tooth on each of said wheels, upon arrival at zero position,actuates mechanism which stops the main actuators in positionscorresponding to the amount on said set of totalizer wheels.

In sub-total or reading operations, the selected set of totalizer wheelsremains in engagement with the actuators during their return movementand are consequently restored to their original positions, to reenterthe total therein. In total or resetting operations, after initialmovement of the actuators in the second cycle of such operation hasreturned the selected set of totalizer wheels to zero, said wheels aredisengaged therefrom and consequently remain in a zeroized condition.

In addition to the two main totalizers just described, the presentmachine is equipped with ten lines of storage wheels, each line havingten sets of storage wheels thereon, thus providing means for storingseparate totals, which is a very desirable feature when the machine isused in connection with certain business systems.

The ten lines of storage wheels are arranged in a circle around tenauxiliary actuators, one for each denominational order of storag wheels.The auxiliary actuators are arranged to slide laterally in relation tothe ten sets of storage wheels to select said sets of storage wheels foractuation. The storage wheels have no transfer mechanism and all thetotals stored therein are computed in a single balance totalizer, whichforms a connection between the auxiliary actuators and the main actuatorof the machine proper. As the storage wheels have no transfer mechanism,obviously they do not pass through the instant invention is arranged forstoring 100 totals, it is not the desire to limit the machine of thisinvention to the storage of any certain number of totals, as it isobviously within the scope of this invention to increase or decrease thenumber of storage sets on a line or the number of lines in a storageunit, or to provide additional units, whichever is desirable.

Two rows of transaction keys control the selection of the 100 storagesets. One row of keys controls the lateral shifting of the auxiliaryactuators to select the different sets of storage wheels on the variouslines, and the other row of keys controls the selection of the ten linesfor engagement of the selected set of wheels thereon with the auxiliaryactuators.

The balance totalizer is mounted in a framework which is shiftableforwardly and rear wardly to disconnect the balance totalizer, which isnormally connected to the auxiliary actuators,

from said actuators and to connect said totalizer to the main actuatorsand vice versa. The framework supporting the balance totalizer is alsoadapted to shift horizontally to bring either the adding or subtractingwheels thereof into register with the main actuators, depending uponwhether an adding or subtracting operation is being performed in saidbalance totalizer. The horizontal shifting of the totalizer iscontrolled by a split row of transaction keys, part of which are addingkeys and part of which are subtracting keys. The timing of the forwardand rearward shifting of the balance totalizer is governed by theregular total control lever.

In adding operations, upward movement of the main actuators positionssaid actuators in proportion to the depressed amount keys. While themain actuators are being thus positioned, the selected set of storagewheels are engaged with the auxiliary actuators and the auxiliaryactuators are driven. As the balance totalizer is also connected to theauxiliary actuators at this time, movement of said actuators turns theselected set of storag Wheels to zero and enters the amount thereon inthe wheels of the previously I zeroized balance totalizer. Before themain actuators start their return movement, the balance totalizer isdisconnected from the auxiliary actuators and connected to the mainactuators, whereupon return movement of said main actuators rotates saidwheels in an additive direction proportionately to the amount set up onthe keyboard. The balanc totalizer now contains an amount which is acombination of the amount stored on the selected set of storage wheelsand that set up on the amount keys.

After the main actuators have completed their return movements, thebalance totalizer is disconnected therefrom and reconnected to theauxiliary actuators, and remain thus connected at the end of a machineoperation. Likewise the selected set of storage wheels remain inengage-- ment with the auxiliary actuators at the end of a machineoperation. At the beginning of the next machine operation, the auxiliaryactuators turn the balance totalizer to zero and simultaneously enterthe amount thereon in the wheels of the selected storage device.Immediately after the new amount has been entered in the wheels of theselected storage device, said wheels are disengaged from the auxiliaryactuators and the set of storage wheels selected for the presentoperation are immediately engaged therewith and return movement of theauxiliary actuators rotates said wheels to zero and enters the amountthereon in the zeroized balance totalizer and the adding operation iscontinued as explained above.

In subtracting operations, the amount on the selected set of storagewheels is first entered in the plus side of the zeroized balancetotalizer, and while the balance totalizer is being disconnected fromthe auxiliary actuators and connected to the main actuators, said mainactuators having been previously positioned under control of depressedamount keys, said balance totalizer is shifted laterally to bring thesub-- tract side thereof into register with the main actuators. Returnmovement of the main actuators reversely rotates the adding wheels ofthe balance totalizer to subtract therefrom the amount set up on thekeyboard. Near the end of the machine operation, the balance totalizeris again shifted laterally to bring the plus side thereof into registerwith the main and auxiliary actuators. Near the beginning of the nextoperation. the balance totalizer is turned to zero and the amountthereon is entered in the wheels of the selected storage device.

As previously explained, sub-total and total operations, often referredto as read and reset op erations, consist of two cycles of operation ofthe machine. Sub-total and total operations in the balance totalizer, aswell as the other totalizers of the machine proper, are controlled bythe well known total control lever. When it is desired to print totalsof amounts in the difierent storage sets, the total control lever ismoved from adding position to the balance totalizer reset position andthe proper transaction keys are depressed to select the desired set ofstorage wheels. During the first cycle of a total operation, theselected set of storage wheels are engaged with the auxiliary actuatorsand reversely rotated thereby to zero, to enter the amount thereon inthe zeroized balance totalizers.

Right at the end of the first cycle of operation, the balance totalizeris disconnected from the auxiliary actuators and connected to the mainactuators, whereupon initial movement of said main actuators, at thebeginning of the second cycle of operation, reversely rotates saidbalance totalizer Wheels to zero position, causing said main actuatorsto be positioned in proportion to the value standing on the wheels atthe beginning of the operation, said actuators in turn positioning theindicating and printing mechanisms. After the wheels of the balancetotalizer have been turned to zero and prior to return movement of themain actuators, said wheels are disconnected from the main actuators andreconnected to the auxiliary actuators. Inasmuch as the balancetotalizer wheels are standing at zero, nothing will be entered in theselected set of storage wheels at the beginning of the succeedingoperation, and as a result, said storage wheels will remain in azeroized condition.

The only difference between a total and subtotal or reset and readoperation is that during the last cycle of a sub-total operation thewheels of the balance totalizer remain connected to the main actuatorsduring their return movement and consequently are returned thereby totheir original positions, and in the beginning of the succeedingoperation this amount is reentered on the selected set of storagewheels.

In the ensuing pages the mechanism pertinent to the instant inventionwill be described in detail, and for a thorough description of all othermechanisms, which are more or less standard and well known in the art,reference may be had to the patents listed at the beginning of thisspecification.

DETAILED DESCRIPTION Framework and operating mechanism The mechanism ofthe machine is supported by a right frame 40 (Figs. 1, 3 and 4) and aleft frame 4|, said frames being secured to a machine base 42, and fixedin rigid relation to each other by various cross frames, rods and a backframe 39 comprising two cross bars 43 and 44. A suitable case or cabinet45 encloses the mechanism of the machine and is secured to the machinebase 42.

Normally the machine is operated by a conventional type of start-stopelectric motor. However, a hand crank is also provided for emergencyoperation of the machine. The operating motor and crank are not hereillustrated, but as they are well known in the art, illustration andfurther description thereof are believed unnecessary.

Amount entering mechanism The machine embodying the instant inventionhas a plurality of rows of amount keys 46 (Figs. 1 and 23) assembled ina key frame 41, secured between rods 48 and 49 supported by the frames40 and 4|. Inasmuch as all the amount banks are similar in construction,it is believed that a description of the amount bank shown in Fig. 1,and its associated mechanisms, will be sufiicient. Each of the amountkeys 46 has a camming extension 50, adapted to cooperate with acorresponding stud 5| in a control plate 52, opposite ends of which arepivotally connected to companion links 53 and 54, in turn pivoted to thekey frame 41.

Depressing one of the keys 46 causes the camming extension 50, incooperation with the stud 5|, to shift the plate 52 downwardly until ashoulder, formed on said camming extension 50, passes beyond the flatsurface of said stud 5i, whereupon the control plate 52 isspring-returned a slight distance upwardly to latch the flat surface ofthe stud over the shoulder, to retain the key in depressed position.After one amount key has been depressed in a particular row, depressinganother key in that same row releases the key previously depressed, thusconstituting what is termed flexible key action. Downward movement ofthe control plate 52 rocks the link 53 clockwise, causing an extensionthereof, in cooperation with a stud 55 in a zero stop pawl 56 secured ona short shaft 5! journaled in an extension of the frame 47, to rock saidstop pawl counterclockwise. Counterclockwise movement ofthe zero stoppawl 55 moves a projection on the upper end thereof out of the path ofthe nose of a reset spider 58 for this particular amount bank. Thespider 58 is rotatably supported on a hub 59 of a main actuator 60 forthis particular bank, said actuator being free on a hub 5| extendingbetween two similar plates 62 (only one here shown) supported by rods 63and 64 extending between the frames 40 and 4|.

A tie rod 65 (Fig. 1) passes through a hole in the center of all of thehubs El and securely anchors all the denominational actuator units infixed relation to each other.

Depressing one of the amount keys 46 moves the lower end of the stemthereof into the path of a nose 65 of a latch operating bell crank 61pivotally mounted on the actuator 50 and connected by a link 68 to anactuator latch 69 also pivotally connected to the amount actuator 60. Astud T5 in the bell crank 61, in cooperation with a horizontal slot inthe nose of the spider 58, operatively connects these two parts for apurpose presently to be described.

A spring 1| (Fig. l) is tensioned to normally maintain a foot-shapedextension of the latch 69 in engagement with a shoulder 12 of adifferential operating segment 13, free on the hub 6!. A link 14pivotally connects the operating segment [3 to an A-shaped operatinglever 15 fulcrumed on a stud 75 in the plate 62. Extensions of the lever15 pivotally support rollers 11 and 18, which cooperate respectivelywith the peripheries of companion plate cams 19 and 80, connected infixed relation to each other by a hub Bl secured on a main shaft 82journaled in the frames 45 and 4|.

Depressing the usual starting bar (not shown) closes the switch for theelectric motor and renders the clutch mechanism effective to connect theelectric motor to the main shaft 82, and said motor then drives theshaft 82 one clockwise revolution when the total control lever is inadding position, and two clockwise revolutions when the total controllever is in reading or resetting position. After the main shaft 82 hasmade the proper number of revolutions, the clutch mechanism isautomatically disengaged and the motor switch is automatically opened toterminate operation of the machine.

In adding operations, clockwise movement of the main shaft 82 causes thecams 19 and to rock the lever 75 first clockwise, which movement, bymeans of the link '54, is transmitted to the operating segment 13.Clockwise movement of the segment 1'3 causes the shoulder 12, mcooperation with the latch 59, to carry the actuator 60 clockwise inunison therewith until the nose 65 of the bell crank 51 engages thedepressed amount key. This rocks the latch 69 out of engagement with theshoulder 12 and simultaneously engages a foot-shaped extension 83 of thelink 68 with the corresponding one of a series of arcuate lockingnotches 84 in a curved plate 85 secured to extending arms of the plate62. This locates and locks the actuator 60 in a position correspondingto the depressed amount "key, after which the segment I3 and connectedmechanism are free to complete their clockwise movements, during whichtime an arcuate surface on the segment '53 retains the latch 69 indisengaged position.

When the lever "I nears the terminus of its initial movement clockwise,a roller 86 carried thereby-engages an arcuate surface 8'! on a beam 88pivoted at 89 to the actuator 60 and forces a curved recess 95, in theupper edge thereof, into contact with the hub 59, to differentiallyposition said beam in proportion to the depressed amount key. A slot inthe rearward end of the beam 88 engages a stud 96 in a link 51, theupper end of which is pivotally connected to an indicator segment 93mounted on one of a series of nested tubes free on an indicator shaft Iill) journaled ontrunnions in the frames ii) and 4!. The lower end ofthe link 91 is pivotally connected to a printer arm IM free on a shaftI92 journaled in the frames 46 and 4|, and said arm I iiI is integralwith a printer gear sector I I13, the teeth of which mesh with a pinionHM secured on one end of a shaft I05, journaled in the printer framework(not shown). Fast on the shaft Hi5 (Fig. l) is a gear 90 meshing withteeth on a rack iii mounted to slide horizontally in the printerframework. Other teeth on the rack HI mesh with a pinion 92 connected bya tube to a type wheel drive pinion 93 which meshes with tooth spacescut in a type wheel St, for this particular order. Upon a machineoperation, a printing hammer (not shown) carries a record strip I46 andan inking ribbon (not shown) into contact with the type wheel 9A toprint the amount on said record strip.

The link 97 transmits the differential positioning of the beam 88 to theindicator segment 38, which in turn causes the front and back in.-dicators for this particular denominational order to be displayed, andlikewise transmits the differ ential positioning of said beam to theprinter shaft I 05, which positions the type wheel 94 to print theamount set up on the key 46.

The segment 98 has teeth which cooperate with an aliner I06 fast on ashaft I91. The aliner I06 is disengaged from the segment 98 at thebeginning of a machine operation and remains di engaged therefrom untilsaid segment is positioned, after which said aliner is reeng'agedtherewith to hold said segment and its associated indicators againstdisplacement.

After the actuator 60 has been positioned under control of the depressedamount key, and the operating segment "I3 has reached the terminus ofits initial movement clockwise, continued rotation of the cams I9 and 80returns the lever "I5 and the segment 13 counterclockwise until theshoulder I2 on said segment moves beyond the foot-shaped extension ofthe latch 69,

whereupon said latch is immediately springurged into engagement withsaid shoulder and a surface its on the segment 73 (Fig. l) incooperation with a stud Hi9 in the actuator 63, returns said actuator inunison with said segment to home position, as here shown, which it willbe observed is one step below zero position.

When no amount key 46 is depressed, the zero stop pawl 56 remains in thepath of the nose of the reset spider 53, as here shown, and initialmovement clockwise of the segment I3 carries the actuator t9 and spider58 in unison therewith until the nose of the spider engages the rearwardextension of the pawl 56, whereupon said spider, by means of the slottherein, in cooperation with the stud It, causes the bell crank to rockthe latch 69 out of engagement with the shoulder 12 to locate theactuator in zero position.

Near the end of an adding operation, a key lock and release shaft H0(Fig. 1), journaled in the frames 40 and 4|, is rocked counterclockwisein the usual manner, which movement by means of a rod I I I, extendingbetween similar arms II2 secured on said shaft Iii in cooperation with afoot-shaped extension II3 of the link 54, shifts the plate 52 downwardlya suificient distance to disengage the stud 5I from the shoulder of thedepressed amount key to permit said amount key to be spring-returned toundepressed position, as here shown. After the keys are released, theshaft H0 is immediately returned clockwise to normal position, to permitthe studs 5| to move into contact with the edges of the stems of thekeys 46.

Totalz'eers The machine embodying the instant invention has two lines ofinterspersed totalizers, each line containing ten sets of totalizerwheels, said lines usually being referred to as the upper or #1totalizer line and the front or #3 totalizer line, and a #2 or balancetotalizer which controls the actuation of the ten sets of wheels on eachof the ten storage wheel lines.

In adding operations, after the actuator 60 (Fig. 1) has been positionedunder control of the depressed amount key and after the segment I3 hascompleted its initial movement clockwise, the corresponding selectedwheel H4 or H5 of the #1 or #3 totalizer, respectively, is engaged withactuator 68, and return movement of said actuator rotates said wheelsclockwise to add therein the amount set up on the amount key. After theactuator 89 has completed its return movement counterclockwise, thewheel I I4 or H5 is disengaged therefrom. When the wheels I I4 or I I5pass through zero position, while traveling in an additive direction, along tooth thereon in cooperation with the well known transfer mechanismtrips the transfer segment of the next highest order so that one willbeadded thereon.

As previously explained, in total and sub-total operations the mainshaft 82 and cams I9 and 80 make two clockwise revolutions. During thefirst revolution of the shaft 82, the selected totalizer line is shiftedlaterally to aline the proper set of wheels thereon with the actuators69, and also during the first cycle the zero stop pawl 55, incooperation with the spider 58, breaks the latch of the actuator 80 inzero position. Near the end of the first cycle of a total or sub-totaloperation, a zero stop throwout shaft 5R6 (Fig. l) journaled in theframes 48 and 4!, is rocked clockwise. Clockwise movement of the shaft5I6 causes a rod 558, extending between similar arms 5I1 (only one hereshown) secured on said shaft 5| 6, in cooperation with an arm 5I9,secured on the shaft 57, to rock said shaft and the zero stop pawl 56counterclockwise to move the projection on the upper end of said stoppawl out of the path of the nose of the spider 58. Also during the firstcycle of a total or sub-total operation, after the selected wheel H4 orIE5 has been alined with the actuator 68, said wheel is moved intoengagement with said actuator Of course, it is understood that it isimpossible to take a subtotal or total of more than one set of Wheels ata time.

Initial movement clockwise of the actuator 60, during the second cycleof a total or sub-total operation, reversely rotates the wheel of theselected totalizer until said wheel arrives in zero position, whereuponthe long tooth thereon, in cooperation with the well known mechanismlater to be explained in connection with the balance totalizer,obstructs further movement of the spider 58. This causes said spider 58to rock the bell crank 61 to move the latch 69 out of engagement withthe shoulder 12 to arrest the actuator 69 in a position proportionate tothe amount on the selected totalizer wheel. After the actuator 69 hasbeen thus positioned, the roller 18 positions the beam 88, the indicatorsegment 98, and the printing wheel 94, in proportion to the position ofthe actuator 60.

In total operations, immediately after the segment 13 has completed itsclockwise movement during the second cycle of such operation, the wheelof the selected totalizer is disengaged from the actuator 69. The wheelis not affected by return movement counterclockwise of said actuator,and therefore remains in a zeroized condition, In sub-total operations,the selected totalizer wheel remains in engagement with the actuator 69during its return movement counterclockwise and is restored thereby toits original position.

In the instant embodiment, a row of transaction keys II6 (Fig. 23)controls the selection and engaging of certain of totalizers on the #1totalizer line in adding operations and a split row of transaction keysH1 and H8 controls the selection and engaging of certain of thetotalizers on the #3 totalizer line in adding operations. In the presentembodiment, only four keys II6 are provided in one bank to select fourof the totalizers on the upper line, and seven keys H1, H8 are providedin another bank to select seven of the totalizers on the front line.However, if it were desired to use all ten totalizers on the upper andthe front lines, then ten keys could be provided in each of these banks.In total printing operations, these keys control the selection of theindividual totalizers on each of their lines. However, the engaging ofsaid totalizers with the actuators is controlled by the usual totalcontrol lever I I9. The keys H1 and I I8 also control the selection ofthe plus and minus sides of the balance totalizer as will be fullyexplained later herein.

Balance totalizer The #2 or balance totalizer (Fig. l), as previouslyexplained, forms a connecting link between the main actuators 69 and theten lines of storage wheels. The balance totalizer functionssubstantially the same as the totalizers on the #1 and #3 totalizerline. All computations of the amounts stored in the various sets ofstorage wheels are performed in the balance totalizer. For example, inadding and subtracting operations, the selected set of storage wheels isreversely rotated to zero and the amount thereon is transferred to theplus side of the zeroized balance totalizer. The balance totalizer isthen disengaged from the auxiliary actuators for the storage devices andengaged with the main actuators 60.

In adding operations the plus side of the balance totalizer is engagedwith said main actuators, and the amount set up on the keyboard is addedto the amount already on the balance totalizer wheels. In subtractoperations the minus side of the balance totalizer is engaged with theactuators 60 and the plus wheels of said balance totalizer are reverselyrotated thereby to subtract from the amount therein the amount set up onthe keyboard. At the very beginning of the next succeeding operation,the combined amount on the plus side of the balance totalizer istransferred to the wheels of the selected storage device. Thus thebalance totalizer provides means for computing all the amounts or totalsstored in the various sets of storage wheels. Inasmuch as the balancetotalizer includes certain novel features, it will be described indetail.

The balance totalizer comprises ten denominational units. However, asthe mechanism is substantially duplicated in each unit, it is believedthat a description of the mechanism of the denominational unitassociated with the main actuator mechanism shown in Fig. 1 will besuflicient.

The denominational unit of the balance totalizer chosen to be describedcomprises a plus wheel I29 (Figs. 1, 4, and 20) and a minus wheel I2Ifree on a rod I22 supported by the end plates I23 and I24 of a shiftableframework, said end plates being connected by a cross bar I25. Theframework just described is shiftable laterally to bring the plus orminus wheels of the balance totalizer into register with the mainactuators, and is shiftable forwardly and rearwardly to connect thewheels of the balance totalizer with and disconnect said wheels from theauxiliary actuators for the storage devices and the main actuators forthe machine proper. The side plates I23 and I24 (Figs. 4, 6, 19 and 20)have similar slots I26 and I21 which engage respectively guide blocksI28 and I29 on extensions of right and left support plates I39 and I3Iimilar to the plate 62 (Fig. 1) and supported by rods 63 and 64. SlotsI32 and I33 (Figs. 6, 19 and 20) in the end plates I23 and I24 areparallel to the slots I26 and I21 and cooperate respectively withrollers I34 and I35, on a rod I4I supported by end plates I36 and I31(Fig. 4) for the storage -devices to assist in shiftably supporting theframework for the balance totalizer. The plates I36 and I31 aresupported by a shaft I38 journaled on trunnions in the frames 49 and 4|,and

by a rod I39 supported by said frames 49 and 4|. The plates I36 and I31,together with various other companion plates, rods and shafts, form theframework for the storage device assembly.

The plus wheel I29 of the balance totalizer (Figs. 4, 20 and 21) hasintegral therewith a gear I45 which meshes with a pinion I46 mounted ona plate I 41, said plate being supported by the shaft I22 and having anextension which engages a hole I48 in the base of a bracket I49 securedon the crossbar I25 on the shiftable framework. The pinion I46 mesheswith a companion pinion I59 pivoted on a stud I5I in the plate I41 andsaid pinion I50 in turn meshes with a gear I52 integral with the minuswheel I 2I of the balance totalizer. From the foregoing it is evidentthat the plus and minus wheels of the balance totalizer are gearedtogether for reverse movement. That is, when one wheel is rotated in onedirection by the main actuator 69, the other wheel is rotated in theopposite direction.

Referring to Figs. 4, 18 and 20, integral with the plus wheel I29 andthe gear I 45 is an alining gear I53, a zero stop disc I54, an actuatordrive gear I55, and a plus transfer cam I56, said parts including thegear I29, being rotatable as a unit upon the shaft I 22. Integral withthe minus wheel I2I (Figs. 4, 6 and 21) and the gear I52 is a minustransfer cam I44, which, together with the plus transfer cam I55,functions in a manher later to be described to cause tens values to betransferred from the denomination being described to the next higherdenomination in adding and subtracting operations, and also functions insub-total and total operations to position the corresponding mainactuator 69 to the positive or true negative balance contained in thebalance totalizer. The plus and minus wheel assemblies of the balancetotalizer are free on the shaft I22 and are retained between the sideplates of the corresponding bracket I49, which bracket prevents lateraldisplacement thereof and also assists in supporting the shaft I 22.

The pinion l 99 (Figs. i l and meshes with a gear i51 pivoted on a studI59 in an extension of the bracket M9 and said gear 51 in turn mesheswith a long pinion 559 free on a rod I69 supported by the plates its and(Fig. 3) and the various other plates of the storage device assembly.The teeth of the gear i531 and the pinion I59 are pointed to assistengaging thereof. The long pinion I59 meshes with a correspondingauxiliary actuator Iivi (Figs. 3, i l and 29) free on a bushing I92,which bushig together with a ratchet I63 for driving said an shaft I64journaled in the storage unit framework. A shoulder on the bushingretains the auxiliary actuator 394 next to the ratchet I93 and enablesthe auxiliary actuator 6| to be shifted with shaft its to select thestorage wheels to be actuated. Two similar pawls I99, only one hereshown, are mounted on the auxiliary actuator and. are urged by springslit into en agement with the teeth of the ratchet I99 to form animpositive driving connection between the shaft I64 and the auxiliaryactuator 59!. In the present adaptation there are ten auxiliaryactuators ISI, one for each denominational order, and said auxiliaryactuators are adapted to actuate the corresponding ones of ten groups ofinterspersed storage wheels iE'l, rotate sly supported by ten storagelines H58 arranged in a circle around the actuators I56 and shiftablymounted in slots in the plates I39 and i3 and in partition plates I99and I10, (Figs. 3 and la) similar to said plates I39 and I31, betweenwhich the interspersed storage wheels I61, for the particulardenominational order being described, are retained. The ten lines I69are shiftable radially to and disengage the ten groups of storage wheelsmounted thereon with and from the auxiliary actuators ISi, as will beexplained more fully later.

In the ensuing pages all the storage wheels on one line wil be to astorage group or a group of storage wheels, each storage groupconsisting of ten denominational orders of interspersed storage wheels,which will hereinafter be referred to as storage sets or sets of storagewheels.

Engaging and mechamsm for the balance foio'lieer As brought out in thegeneral description, the balance totaliscr is adapted to be engaged withthe main actuators to have amounts entered therein under control of thedepressed. amount keys 46, and is likewise adapted to be engaged withthe long pinions i59 (Fig. 20) to transfer the amount entered in saidbalance totalizer into the desired set of storage wheels I91. Themechanism for and disengaging the balance totalizer will now bedescribed.

The side embers 593 and I24 (Figs. 4, 6 and 19) of the balance totalizerframework I25 each has an identical slot ill and the plates I36 and.

' iary actuator is secured on a 7 I31 have corresponding camming slotsI12 through which extend studs 13 in identical links I14 pivotallyconnected. at I 15 to similar arms I16 secured on a shaft I19 (Fig. 4),said shaft being fulcrumed on trunnions in the frames 40 and AI. Alsosecured on the shaft 18 is a crank I19 (Figs. 4, 5, and 19) having astud I80, which extends between similar projections l8I and I82 of apitman I83, the upper end of which is guided by a slot I84 therein, incooperation with the shaft I18. The lower end of the pitman 83 (Figs. 4and 5) carries a stud I95, which extends through an L- shaped arcuateslot 183 in a plate I81, and is adapted to engage a hook I89 of anengaging and disengaging spider 589. The plate I81 and the controlspider (Fig. 5) are in axial alinement with the amount differentials 60(Fig, 1) and form a part of the totalizer controlling mechanism, whichis fully disclosed in the Fuller Patent No. 1,242,170, referred to nearthe beginning of this specification.

Balance toi'aiz'zer engaging mechanism The keys Hi and I it! (Fig. 23)in addition to selecting totalizers on the upper or #1 totalizer linefor addition, and. selecting the plus and minus sides of the balancetotalizer, also control the positioning of a control disc I95 (Fig. 5)to control the engaging and disengaging of the balance totalizer inadding and subtracting operations, it being recalled that the engagingand disengaging of balance totalizer are exactly the same in eitheroperation. The periphery of the control disc E95 cooperates with a studI96 in an arm I91 pivoted on a stud I99 in a crank I99 fulcrumed on afixed stud 269. The arm I91 has a slot Edi which cooperates with a stud292 in the pitman I 99.

At the beginning of adding or substracting operations, the crank 99 isrocked clockwise in the well known manner to move the stud I96 out ofthe path of the periphery of the control disc I95, whereupon a spring293 causes the arm I 91 to rock counterclockwise, which causes the slotMI, in cooperation with the stud 292, to rock the pitman I93 clockwiseto disengage the stud I from the hook 89 and to move said, stud in theupward branch of the L shaped slot I85, to retain said pitman 83 andconnected mechanism against displacement. Immediately after the crankI99 has been rocked, the control disc 95 (Fig. 5), under control of thedepressed key H1 or H8, is positioned so that a hi h portion of theperiphery thereof is opposite the stud I96, whereupon return movementcounterclockwise of the crank I99 the stud 596 to engage the highportion of the disc thus forming a fulcrum point which causes the iii?to rock clockwise during continued counterclockwise movement of thecrank 999. iockivise movement of the arm I91, by means of the slot fiEiItherein in cooperation with the stud 292, moves the stud I intoengagement with the hook 99 and into circumferential alinemeet with thelong branch of the slot I86.

After the main actuator 69 (Figs. 1 and 5) has been positioned undercontrol of the depressed amount key 48, in the manner explained earlierherein, the engaging spider I89 is rocked clockwise, in the well knownmanner, to shift the pitman 59-3 forwardly, causing the projection ISIthereof (Fig. 19), in cooperation with the stud I99, to rock the crankI19, shaft H9 and arms I16 clockwise. Clockwise movement of the arms I16shifts the links I14 downwardly, causing the studs I13, guided by theslots I12, and in cooperation with the slots III, to shift the balancetotalizer frame I25 forwardly to disengage the gear I"! (Fig. from thelong pinion I59 and to engage the plus or minus wheel I20 or I2I,depending upon the type of operation, with the teeth of the actuator 60.The engaging and disengaging movement of the balance totalizer in addingand subtracting operations is illustrated graphically in space A of thechart Fig. 22.

In adding operations, return movement counterclockwise of the mainactuator 69 (Fig. 1) causes said actuator to rotate the plus wheel I28(Figs. 4 and 20) of the balance totalizer in a clockwise direction toadd therein the amount setup on the key 46. In subtract operations,return movement of the actuator 60 rotates the minus wheel I2I of thebalance totalizer in a clockwise direction, which, by means of thegearing shown in Fig. 20 and explained earlier herein, reversely rotatesthe plus wheel IZII to subtract therefrom the amount set up on the key48. After the actuator 80 has completed its return movement the engagingspider I89 (Figs. 5 and 19) is returned counterclockwise, causing theprojection I82 of the pitman I83, in cooperation with the stud I80, toreturn the shaft I18 counterclockwise to disengage the balance totalizerfrom the main actuators and to reengage the gear I51 (Fig. 20) with'thelong pinion I59.

Transfer mechanism When the plus wheel of the balance totalizer isengaged with the actuator 69 (Figs. 4 and 6), the transfer tripping camI58 for said wheel is in the position shown by dot and dash lines inFig. 6. When the plus wheel I of the balance totalizer passes from nineto zero, a tripping node on said cam wipes past a projection of atripping pawl 204 to render the transfer mechanism effective to add onein the next higher order. In subtract operations, when the plus wheelI20 of the balance totalizer passes from zero to nine while beingrotated reversely by the minus wheel I2I, the tripping cam I44 (Fig. 4)for said minus wheel, in cooperation with the tripping pawl 254, tripsthe transfer mechanism to cause one to be borrowed from the next higherorder.

Further description of the transfer mechanism is believed unnecessary,as this mechanism is well known in the art and is fully disclosed in thepatents referred to at the beginning of this specification.

Total and sub-total recording operations In sub-total and totalrecording operations, the machine operates through two cycles, the firstcycle being utilized to position the selected set of totalizer wheels onthe No. l or the No. 3 line, in register with the main actuators 89, thezero stops 58 (Fig. 1) for said actuators breaking the latches thereofin zero position during this first cycle of operation. In the case ofthe No. 2 or balance totalizer, this first cycle of operation isutilized to shift the positive wheels thereof into alinement with theactuators 60 when the balance totalizer is in a positive condition, orto shift the negative wheels of said balance totalizer into alinementwith said actuators when said totalizer is in an overdrawn or negativecondition.

As stated in the general description, the functions of the machine arecontrolled by the total control lever II9 (Fig. 23), which normally isin its central or add position. When the total control lever II9 is inadd position, the control disc I95 (Fig. 5) controls the engaging anddisengaging of the balance totalizer as explained above, and similardiscs positioned under control of the keys H8, H1 and H8 control theengaging and disengaging of the #1 and #3 totalizer lines. The totalcontrol lever II9 (Fig. 23) is settable to three positions above addingposition for controlling reading operations involving the Nos. 1, 2 and3 totalizer lines, respectively, and to three positions below addingposition for controlling resetting operations involving the Nos. 1, 2and 3 totalizer lines, respectively.

As an example, moving the total control lever II9 to #2 reset position,by means of the well known mechanism, disclosed in the patents referredto hereinbefore, rocks the arm I91 (Fig. 5) clockwise to engage the studI with the hook I88. Near the end of the first cycle of operation,initial movement clockwise of the spider I89 causes the pitman I83 toshift the balance totalizer frame I25 (Figs. 5, 6, and 20) forwardly toengage the plus wheels I28 of the balance totalizer with theactuatorsfiil. At the beginning of the second cycle of operation,initial movement clockwise of the actuator 68 drives the wheel I20 in acounterclockwise or reverse direction and upon its arrivel at zeroposition the projection on the tripping cam I58 wipes an arcuate surfaceof an arm 298 rotatably mounted on a shaft 201 journaled in the endplates I23 and I24 (Fig. 4) of the totalizer framework. The tripping camI 58 rocks the arm 208 clockwise, against the action of a torsion spring208 tensioned between a stud in said arm and a rod 209 supported byrearward extensions of totalizer alining pawls 2H! in turn secured onthe shaft 20?. Forward movement of the balance totalizer framework I25to engage the wheels of the balance totalizer with the actuators 65moves a flat surface on the upper portion of the arm 206 (Fig. 6) intothe path of a foot-shaped extension 2II of a lever 2I2 pivoted on theplate I3I. Clockwise movement of said arm 258 causes the flat surface onthe upper portion thereof, in cooperation with the foot 2I I, to rockthe lever 2I2 counterclockwise. counterclockwise movement of the lever2I2 causes a stud 2I3 in the upper end thereof, in cooperation with thebifurcated end of a lever 2I4 pivoted to the plate I 3|, to rock saidlever clockwise against the action of a spring 2I5. The spring 2E5 istensioned between the transfer tripping arm and an actuator stop pawl2I8 pivotally mounted on the lever 2, said spring 2I5 urging said pawlclockwise to normally maintain a bent-over ear 2I'I thereof in contactwith a stud H8 in said lever 2I4. Clockwise movement of the lever 2I4moves the bentover ear 2Il into engagement with a tooth 2I9 on thespider 58 for this particular amount bank (Figs. 1 and 6), said toothcorresponding to the amount on the balance totalizer wheel, to positionthe actuator 68 in proportion to said amount. In adding and subtractingoperations, the bent-over ear 2II of the pawl H8 is rocked intoengagement with the teeth 2I9, when the node of the add or the subtracttransfer cam wipes past the pawl 258. However, when this occurs, thespider 58 is traveling in a counterclockwise direction and consequentlythe teeth 299 ratchet over the ear 2I'I.

After the amount of the total has been recorded, the engaging spider I89(Figs. 5 and 6) is returned counterclockwise to disengage the zeroizedwheels of the balance totalizer from the actuators ti) and to reengagethe gears I51 (Fig. 20) with the long'pinions I59.

In sub-total or reading operations, the wheels of the balance totalizerremain in'engagement with the actuators BI] (Fig. 1) during their returnmovement counterclockwise and consequently said wheels are returned totheir original positions.

Overdraft operations When the balance totalizer is overdrawn, the truenegative balance is obtained by taking a total or a subtotal with theminus totalizer wheels I2I (Fig. 4) in register with the actuators 60.

While the feature is not used in the present adaptation, the machine isarranged for the reading or resetting of the negative side of thebalance totalizer in order to obtain a true negative balance. Referringto Figs. 4 and 6, the negative or minus transfer cam I44 cooperates witha pawl :25, similar in outline to the pawl 206, said pawl in turncooperating with the footshaped projection 2II of the lever 2l2, whenthe negative side of the balance totalizer is in register with theactuators 50 to position the spiders 58 and the differential mechanismsassociated therewith, in proportion to the amount standing on thenegative wheels of the balance totalizer.

Lateral shifting of the balance totalizer Mechanism under control of thekeys Ill and H8 (Fig. 23) is provided for shifting the balance totalizerlaterally to bring the plus or the negative wheels thereof into registerwith the actuators 60. This mechanism is only partially illustratedherein and will be but briefly described, as it is well known in the artand fully disclosed in the Shipley patents referred to previously.

The keys Ill and H8 control the positioning of a transactiondifferential mechanism, similar to that shown in Fig. 2, saiddifferential mechanism, through the well known beamand asso ciated linkI95 (Fig. 3), in turn positioning a corresponding indicator sector HMand printing sector (not shown) in proportion to the depressedtransaction key In or H8. The indicator sector I9I, for the keys II! andH8, is connected by a tube I92 to an aliner segment i913 integral withan arm I94. The arm I94 is connected by a link 22I (Figs. 3 and 4) to anarm 222 integral with a balance totalizer shifting earn 223 free on astud 224 secured in the frame M. The cam 223 has a groove 225 whichcooperates with a roller 225 rotatably mounted on a pin 22! secured in abracket 228, in turn secured to the end plate I24 of the shiftabletotalizer frame I25. An undercut portion of the roller 22 extendsthrough a slot 229 in a bracket 2%, fast to the left frame 4 I, saidslot eliminating any tendency of the frame I25 to rock when the cam 223is being positioned, and likewise serving to retain the roller 225 inthe cam groove 225.

The contour of the cam groove 225 (Fig. 4) is such that, when the cam223 is positioned under control of any one of the plus keys II'I (Fig.23), the plus wheels I20 of the balance totalizer will be in alinementwith the actuators 60, and when said cam 223 is positioned under controlof any one of the minus keys II8, the balance totalizer frame I25 willbe shifted so as to aline the minus wheels I2I with the actuators 66. Asin adding and subtracting operations, the keys II! and H8 control theselection of the plus or minusside of thebalance totalizer in sub-totaland total operations. An alining pawl I43 (Fig. 3) fast on the shaftII", in cooperation with teeth in the segment I93, alines thedifferential mechanism for the keys Ill and H8 in set position.

The time of the engaging and disengaging 0f the balance totalizer,during total and sub-total operations, is depicted graphically in spacesI and J of the chart (Fig. 22).

When the wheels of the balance totalizer are moved into engagement withthe actuators 60 (Fig. 4), the shifting of the frame I25 causes the pin221, which shifts in unison therewith, to engage the corresponding oneof a series of holes 23I in the bottom of the cam groove 225 to securethe cam 23I and the balance totalizer frame I25 against displacementduring the machine operation. The cam 223 is not returned to a neutralor home position at the end of the machine operation, but remains in itsset position, and during the succeeding machine operation is moveddirectly from said set position to its new position.

Alining mechanism for balance totalizer wheels As previously explained,the balance totalizer and frame I25 are shown in normal or home positionin Fig. 20, in which position the gear I5! is in mesh with the longpinion I59. When the frame I25 is shifted forwardly, to engage thebalance totalizer wheel with the actuator 60, the tooth of the aliner 2|0 engages the teeth of the alining gear I53 to prevent displacement ofthe balance totalizer wheel while the gear I51 isbeing disengaged fromthe pinion I59 and the balance totalizer wheel I20 or I2I is beingengaged with the actuator 60, or vice versa. There is an aliner 2H) foreach denominational order of the balance totalizer and the extremerighthand and left-hand aliners, and the aliner about midway of thesealiners each has a rearward extension which supports the rod 259 (Figs.4 and 20), and all of said aliners 2I5 are secured on the shaft 201. Therod 259 is engaged by slots in similar arms 232 and 233 (Figs. 4, l9 and20) fast on a shaft 234, rotatably supported by trunnions in the frames42 and M. Also fast on the shaft 234 are similar arms 235 and 235 havingsimilar camming slots 231 and 238 which cooperate respectively withrollers 25-5 and 265 carried by the two similar arms H5, which, it willbe recalled, are secured on the shaft Ila and move in unison therewithunder influence of the pitman I83 (Figs. 5 and 19).

Clockwise movement of the arm ilil, shaft I78 and arms I15 underinfluence of initial movement forwardly of the pitman I23 causes therollers 239 and 245 (Fig. 4), in cooperation with the cam slots 23'! and235 in the 235 and 235, to rock said arms, the shaft 234 and arms 232and 223 counterclockwise. Clockwise movement of the arms 232 and 233, bymeans of the slot-s therein in cooperation with the rod 209, rocks theshaft 251' and the aliners 2H3 counterclockwise to engage said alinerswith the teeth of the alining gears I53, to prevent displacement of thebalance totalizer wheels while said wheels are being engaged with themain actuators 65.

When the shaft I78 and the arms I16 approach the terminus of theirinitial movement clockwise, the configuration of the cam slots 23'! and238 causes the arms 235 and 235, shaft 234, and arms 232 and 233 toreturn counterclockwise to disengage the aliners 2II! from the gearsI53,

after-the balance totalizer wheels have been engaged with the mainactuators. Return movement counterclockwise of the shaft I18, underinfluence of the pitman I83, reverses the procedure outlined above toengage the aliners 2I9 (Fig. 20) with the gears I53, while the balancetotalizer wheels are being disengaged from the main actuators and thegears I51 are being reengaged with the long pinions 59.

Storage device selecting mechanism The balance totalizer described aboveis used for computing amounts to be stored in any of 100 storage devicesand, as previously explained, these 100 storage devices are mounted on10 shafts I68 (Fig. 14), there being ten denominational sets of storagewheels on each shaft. Fig. 20 illustrates the mechanical connectionbetween one denominational unit of the balance totalizer and thecorresponding auxiliary actuator I6I, which actuates the ten sets ofstorage wheels I61 for this particular denomination. Instead of thestorage device lines being shifted laterally with relation to theauxiliary actuators I6I, said actuators are shifted laterally inrelation to the ten sets of storage wheels actuated thereby. r

The lateral shifting of the auxiliary actuators I6I is controlled by arow of keys 245 (Fig. 23), similar to the amount keys 46, and anadjacent row of keys 241 controls the selection of any one of the tenlines of storage devices for engagement K30 and disengagement with saidauxiliary actuators I6I. The two rows of control keys 245 and 241 eachhas a differential mechanism somewhat similar to that for the amountbank, illustrated in Fig. l and described earlier herein, and as the 535differential mechanisms for these two control banks are substantiallyidentical, it is believed that the description of the control keys 241and the differential mechanism therefor willbe suflicient.

Selecting keys and the differential mechanism therefor The keys 241(Fig. 2) are mounted in a framework 248 supported by the rods 48 and 49,and when no control key 241 is depressed, a zero stop pawl 249, mountedin the frame 248, remains in the path of the nose of a lever 259,rotatable on a bushing 25I supported by the tie rod 65, to break thedifferential latch mechanism in zero position. The lever 250 has a slot,in the forward end thereof, which surrounds a stud 252 in one arm of abell crank 253, pivotally mounted on an arm 254 free on the bushing 25LAn upwardly extending arm of the bell crank 253 is pivoted to atransaction bank latch 255, and, together with a companion arm 256,supports said latch 255 for parallel shifting movement. This latchmechanism, and in fact, the whole transaction differential mechanism, issimilar in many respects to the amount differential mechanism explainedearlier herein in connection with Fig. l.

A spring 251 urges the latch 255 toward a differential operating segment259 to normally maintain a foot-shaped projection 25B of said latch inthe path of a shoulder formed in the periphery of said differentialoperating segment 259 free on the bushing 25f. A link 259 connects thesegment 259 to an operating lever 2(5I free on a stud 262 in a supportplate (not shown) but similar to the plate I30. The lever 2M carriesrollers 253 and 254, which cooperate respectively with the peripheriesof companion plate cams 265 and 266 fast on the main'shaft 82, which, 75

itwill be recalled, makes one clockwise revolu tion in adding andsubtracting operations and two such revolutions in sub-total and totalrecording operations.

c When no key 241 is depressed in adding or subtracting operations,initial movement clockwise of the shaft 82 and cams 255 and 255 rocksthe segment 259 and the lever 259 clockwise until said lever 250contacts the zero stop 249. This terminates movement of the lever 255and causes the slot therein, in cooperation with the stud 252, to rockthe bell crank 253 counterclockwise to disengage the foot-shapedextension 258 of thelatch 255 from the shoulder on the segment 259,thereby effecting what is termed breaking of the transactiondifferential latch. Breaking the latch 255 (Fig. 2) moves a rounded nose261 thereof into engagement with the first of a series of aliningnotches 268 in a plate 299 secured to the frame 248, to hold thedifferential mechanism against displacement. After the latch 255 hasbeen thus broken or disengaged, the segment 259 continues its clockwisemovement uninterruptedly, causing an arcuate surface 219 on the periphery thereof to move into the path of the sole of the foot 258 tolock said latch in the notch 298.

Pivotally mounted on the arm 254 and positioned thereby is a transactiondifferential beam 21I, the rearward end of which is bifurcated tostraddle a stud 212 in a link 213. The upper end of the link 213 isconnected to an alining sector 214 free on the shaft I00, and the lowerend of said link is connected to an arm 215 integral with a gear sector216 free on the shaft I92. The gear sector 216 meshes with a companiongear 211 secured on one end of a printer shaft 218 journaled in theframe I94 and a printer back frame 219.

When the lever 2BI nears the terminus of its initial movement clockwisea roller 280, carried thereby, engages an arcuate surface 28I on thebeam 21I and forces said beam upwardly until a curved notch in the upperedge thereof contacts a hub 282 rotatable on the bushing 25I. Thispositions the segment 214 and the shaft 218 in proportion to theposition of the lever 259, which in this case is zero position. Thesegment 214 (Figs. 2 and 3) is connected by a hub 299 to a gear segment284 and by a tube 285 to a gear segment 286, similar to said segment284, said gear segments meshing respectively with racks 221 and 288,mounted to slide vertically in slots in the cross bars 43 and 44 of theback frame 39. An extension 38I (Figs. 2, 3 and 10) secured to the rack281 has a vertical slot therein and the rack 288 has a similar slot bothof which are adapted to slide freely on the shaft 234.

Depressing one of the transaction keys 241 causes a stud 289 therein, incooperation with a corresponding camming surface 295 on a control plate296, to shift said control plate downwardly against the action of aspring (not shown). The control plate 296 is shiftably mounted in theframe 248 by means of arms 291 and 298, connected respectively to thelower and upper ends thereof, both of said arms pivotally supported bythe frame 248. Downward movement of the control plate 296 rocks the arm291 clockwise, causing a camming surface thereon, in cooperation with astud 299 in the zero stop 249, to rock said zero stop counterclockwiseagainst the action of a spring 294 to move the upper end thereof out ofthe path of the nose of the lever 250. Depressing one of the keys 241likewise causes, the stud 289, in cooperation with an angular surface onthe upper end of a corresponding hook 300 on a detent 30!, to shift saiddetent downwardly against the action of a spring 302 until said studmoves beyond the hook 300, whereupon the spring 302 returns the detent30l a slight distance upwardly to latch said hook 300 over the stud 289and retain the key in depressed position.

Likewise depressing one of the keys 241 moves the lower end of the stemthereof into the path of a rounded surface 303 on the bell crank 253,whereupon initial movement clockwise of the segment 259 and the arm 254causes the surface 303 to engage the stem of the depressed key to movethe latch 255 out of engagement with the shoulder on said segment 259 tocontrol the positioning of the beam 2' in proportion to the depressedkey 241. After the beam 21l has been thus positioned, the roller 280, incooperation with the surface 28L rocks said beam upwardly intoengagement with the hub 282 to position the printing mechanism for thisparticular bank and the racks 281 and 288 (Figs. 2 and 3) in proportionto the depressed transaction key 241. The racks 281 and 288 in turnselect one of the ten lines I38 of the storage devices (Fig. 14) forengagement with the auxiliary actuators l6l, as will be explained morefully later herein. The movement of the differential mechanism for thekeys 241 (Fig. 2) is shown graphically in space C (Fig. 22).

Transaction key interlocks In adding and subtracting operations it ispossible to depress keys in any or all of the four transaction banks.However, in sub-total and total recording operations, the transactionkeys are used to select the particular totalizer being read or reset andit is therefore necessary to lock the transaction keys in all banks,except the ones being used, against depression.

In total and sub-total recording operations the keys 246 and 241 (Fig.23) function in exactly the same manner as in adding and subtractingoperations to select the various storage devices for reading orresetting. In order to prevent maloperation of the machine, mechanismunder control of the total lever H9 locks all transaction keys againstdepression, except those corresponding to the position of said totallever. For example, when the total control lever I I9 is moved to #2Read or #2 Reset position, the transaction keys H6, H1, and H are lockedagainst depression, while the keys 246 and 241 may be depressed toselect the various storage sets. Likewise when the total control lever II9 is in either #1 Read or #1 Reset position, the transaction keys H6,246 and 241 are locked against depression, and the keys H1 and H8 arefree to be depressed to select the various totalizers on the #1 line.This mechanism, which is so well known in the art that littledescription thereof is believed necessary, includes a slide 304 (Fig. 2)mounted in a recessed portion of the frame 210, said slide havingapertures therein adapted to cooperate with a projection 305 of the arm291. When the total control lever H9 (Fig. 23) is moved either to #2Read or #2 Reset position, connections between said total control leverand the slide 334 cause said slide to be positioned so that one of theapertures therein is opposite the projection 305. Consequently,clockwise movement of the arm 291 is not obstructed, and it is possibleto depress a key in this transaction bank. Obviously similar mechanismfor the keys said yoke is a crank 308.

246 functions at the same time as the mechanism for the keys 241. Whenthe total control lever 205 is moved to either #1 or #3 Read position,or #1 or #3 Reset position, the slide 304 is so positioned that a solidportion thereof is opposite the projection 305, thereby obstructingclockwise movement of the arm 291 to prevent depression of thetransaction keys 241. Each transaction bank has arms similar to arm 291,with projections similar to 305 thereon, which projections cooperatewith corresponding apertures in the slide 304 in exactly the same manneras described for the keys 241. When the total control lever is in addingposition, the slide 304 is so positioned that it does not interfere withdepression of any of the transaction keys.

Aliners for transaction dificrentials After the segments 214 (Figs. 2and 3) and the racks 281 and 288 have been positioned under control ofthe depressed key 241, an alining pawl 306, integral with a yoke aliningmember 301, is rocked into engagement with a tooth-space of the segment214 corresponding to the depressed key 241 and remains in engagementtherewith until after printing has been effected, to preventdisplacement of the associated parts. The timing of the movement of thealining yoke 301 and aliner 306 is illustrated graphically in space H ofthe chart (Fig. 22). Two bent-over arms of the yoke 301 (Figs. 2, 3, and15) are free on the shaft I01, and secured to the right-hand arm of Thecrank 30B is pivotally connected by a link 300 to one arm of a lever3I0, free on the shaft I38. The other arm of the lever 3I0 carries aroller 3H which cooperates with a camming groove 312 in a cam 3l3secured on the main shaft 82.

When the machine is at rest, the pawl 336 (Fig. 2) engages the segment214, as here shown, Near the beginning of machine operation and prior tothe time that the roller 280 (Fig. 2) engages the beam 21l, revolutionof the cam 3l3 (Fig. 15) causes the cam groove 3l2, in cooperation withthe roller 3| I, to rock the lever 3I0 clockwise to disengage the pawl306 from the segment 214, and said pawl remains thus disengaged whilesaid segment is being positioned by the roller 280 in cooperation withthe beam 211, as explained above. After the segment 214 has beenpositioned, continued rotation of the cam 313 causes the cam groove 3|2to return the lever 3I0 counterclockwise to normal position, to reengage the pawl 306 with the tooth-space of the segment 214corresponding to the depressed key 241. Other alining pawls on the yoke301 (Fig. 3) similar to the pawl 306, in cooperation with segments forthe transaction keys H6 (Fig. 23), H1 and H8, and the transaction keys246, said segments similar to the segment 214, aline said segments inexactly the same manner as explained in connection with Fig, 2.

Lateral positioning of auxiliary actuators Inasmuch as the auxiliaryactuators 16! (Figs. 3 and 20) are positioned to select one of the tendenominational sets of storage wheels prior to the shifting of theselected one of the ten storage lines to engage said selected set ofwheels with said auxiliary actuators, it is believed advisable todiscontinue the description of the mechanism associated with the controlkeys 241 (Fig. 2), which controls the selection of the ten lines ofstorage devices and the engaging and disengaging movement thereof, andpick up the description of the transaction keys 246 (Fig. 23), which, itwill be recalled, control the lateral shifting of the auxiliaryactuators'l6l in relation to the ten denominational sets of storagewheels.

The differential mechanism associated with the keys 246, which issimilar in every respect to the differential mechanism for the keys 241ex plained above, is connected by a link 3I4 (Fig. 3), similar to thelink 213 for the keys 241, to a segment 3I5, similar to the segment 214.A collar 3I6 connects the segment 3I5 to the left arm of a yoked member3I1, the right arm of said yoke forming a segmental gear 3I8 similar tothe segment 284.. The segment 3I8 meshes with the teeth of a verticalrack 3I9 mounted in slots in the cross bars 43 and 44 in exactly thesame manner as the racks 281 and 288 (Fig. 3). The lower end of the rack3!!! (Figs. 3 and 8) has a vertical slot 320 which slides on the shaft234. Teeth in the lower end of the rack 3I9 mesh with teeth out in aflanged portion of ashifting sleeve 322 carrying a hub 323 (Figs. '7 and8), which, in cooperation with a stud 324 secured in the frame 40,rotatably supports said sleeve 322. The head of the stud 324, incooperation with said hub 323, prevents side-play of the sleeve 322.

Mounted on an extension of the sleeve 322 (Figs. 7, 8 and 9) arediametrically opposed studs 325 which engage respectively camminggrooves 326 and 321 in an auxiliary actuator shifting cam 328, which camhas a counterboring which fits freely on the hub 323. A flanged portionof the cam 328 is secured to a plate 329, said plate and said cam beingheld against rotation by means of a hole in the upper end of said plate,which fits freely on a stud 330 in a bracket 33I secured to the base 42,(Figs. 3, 8 and 9), and. by means of a slot in the lower end of saidplate 329, in cooperation with a stud 332 in said bracket 33I. A reducedportion of the counterbore in the cam 328 forms a journal for a trunnionstud 333 secured in a hole in the right-hand end of the shaft I64, thewall formed by said counter-bore, in cooperation with the end of theshaft I64 and the head of the stud 333, functioning to' prevent lateralmovement of the shaft I64 in relation to the cam 328. The left end ofthe shaft I64 is journaled in a hole in the frame 4 I Depressing one ofthe keys 246 (Fig. 23) causes the differential mechanism therefor,similar to that shown in Fig. 2, to position the segment 3I5, (Fig. 3)which, by means of the collar 3I6 and yoke 3I1, positions the rack 3I9in proportion to the depressed key 246. The rack 3I9 (Figs. 7 and 8) inturn rotates the sleeve 322 to a position corresponding to the depressedkey 246 and said sleeve, by means of the studs 325 therein, incooperation with the cam grooves 326 and 321, shifts the cam 328, theshaft I 64 (Figs. 3 and 20) and the auxiliary actuators I6I laterally toa position corresponding to said depressed key 246. The lateralselecting movement of the auxiliary actuators I61 is illustratedgraphically in space D of the chart (Fig. 22)

After the auxiliary actuators I6I have been thus positioned, theselected storage wheel line I 68 (Fig. 14) is shifted to engage theselected set of storage wheels on that line with said auxiliaryactuators. After the storage wheels are engaged with the auxiliaryactuators, mechanism presently to be described rotates the shaft I64 toenter the amount set up on the amount keys 46 in said storage wheels. Asis customary with this type of differential mechanism, the lateralpositioning of the auxiliary actuators IBI is not disturbed during theremainder of the machine operation, but at the beginning of the nextmachine operation said actuators are moved directly from their oldposition to their new position.

Aliner for auxiliary actuators The shaft I64 has secured thereto analining disc 335, (Figs. 3 and 16) adapted to cooperate with a series ofnotches 336 in an aliner plate 331 secured to a bent-over portion of alever 338. The lever 338 is free on the shaft I38 and a spring 339 urgessaid lever clockwise to normally maintain a roller 340 carried thereby,in contact with the periphery of a plate cam 345 secured on the shaft82. The timing of the cam 345 is depicted graphically in space G of thetime chart (Fig. 22). When the machine is at rest, the aliner 331 (Fig.16) engages the disc 335, but soon after the beginning of the machineoperation and prior to the time that the auxiliary actuators I6I areshifted laterally, the cam 345, in cooperation with the roller 340,permits the springs 339 to rock the lever 338 counterclockwise todisengage the aliner 331 from the disc 335. After the shaft I64 and theauxiliary actuators have been positioned laterally, as explained above,to select the desired set of storage wheels, the cam 345 rocks the lever338 counterclockwise to engage the notch 336 of the aliner 331, inregister with the disc 335 (Fig. 3), with said disc to prevent lateraldisplacement of the auxiliary actuators during the remainder of themachine operation.

Storage wheel engaging mechanism As previously explained, each of theten storage wheel shafts I68 (Fig. 14) supports ten denominational setsof storage wheels I61, said shaft being shiftably mounted in slots inthe plates I36, I31, I69 and I10 (Fig.3). The storage wheel shafts I68are adapted to be shifted radially, in relation to the shaft I64, toengage and disengage the selected set of storage Wheels thereon with andfrom the auxiliary actuators NH. The selection of the ten storage linesI68 for engagement with and disengagement from the auxiliary actuatorsI6I is controlled by the transaction keys 241 (Figs. 2 and 2 3). The setof storage wheels selected in the preceding operation remain inengagement with actuators H, as illustrated by the 0 storage line I68located near the top of the plate I59 to the right of shaft I60 (Fig.14), during the early part of the succeeding operation until the amounton the balance totalizer wheels is entered therein, which is effected bysaid balance totalizer wheels being reversely rotated to zero positionby the auxiliary actuators I6I. Immediately after the entry of amountstherein, the pre-selected set of storage wheels are disengaged from theactuators I6I and the set of storage wheels selected in the presentoperation are engaged therewith, as will now be explained in detail.

Stop bar and aliner mechanism.

have notches in the right-hand ends thereof which are enga ed by onewall of slots 350 (Fig.

